//==========================================================================
// Copyright (c) 2000-2008,  Elastos, Inc.  All Rights Reserved.
//==========================================================================
/*
 * Copyright (c) 1997-1998 University of Utah and the Flux Group.
 * All rights reserved.
 *
 * This file is part of the Flux OSKit.  The OSKit is free software, also known
 * as "open source;" you can redistribute it and/or modify it under the terms
 * of the GNU General Public License (GPL), version 2, as published by the Free
 * Software Foundation (FSF).  To explore alternate licensing terms, contact
 * the University of Utah at csl-dist@cs.utah.edu or +1-801-585-3271.
 *
 * The OSKit is distributed in the hope that it will be useful, but WITHOUT ANY
 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE.  See the GPL for more details.  You should have
 * received a copy of the GPL along with the OSKit; see the file COPYING.  If
 * not, write to the FSF, 59 Temple Place #330, Boston, MA 02111-1307, USA.
 */
#ifndef _BUF_IO_H_
#define _BUF_IO_H_
typedef struct bufio bufio_t;

struct bufio {
  int (*map)(int baseaddr, int size,
     void **out_addr,
     _ELASTOS UInt32 offset,
     _ELASTOS Int32 count);

 int (*unmap)(
     void *addr,
     _ELASTOS UInt32 offset,
     _ELASTOS Int32 count);

 int (*wire)(
     _ELASTOS UInt32 *out_phys_addr,
     _ELASTOS UInt32 offset,
     _ELASTOS Int32 count);

 int (*unwire)(
     _ELASTOS UInt32 phys_addr,
     _ELASTOS UInt32 offset,
     _ELASTOS Int32 count);
 int        width, height, depth, stride;
 int        video_mem;

    unsigned count;        /* reference count */
    _ELASTOS UInt32 addr;        /* address of frame buffer */
    _ELASTOS UInt32 size;        /* size of frame buffer */
};


bufio_t *bufio_create(_ELASTOS UInt32 addr, _ELASTOS UInt32 size);

#endif // _BUF_IO_H_
